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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국태양에너지학회 한국태양에너지학회 논문집 태양에너지 제19권 제4호
발행연도
1999.12
수록면
33 - 43 (11page)

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The study on ice thermal storage system is to improve total system performance and increase the economical efficiency in actual air-conditioning facilities. To obtain the high charging and discharging efficiencies in ice thermal storage system, the improvement of thermal stratification is essential, therefore the process flow must be piston flow in the cylindrical type.
With the relation of the aspect ratio (H/D) in the storage tank, the stratification is formed better as inlet flow rate is smaller. If the inlet and the outlet port are settled at the upside and downside of the storage tank, higher storage rate could be obtainable.
In case that the flow directions inside the thermal storage tank are the upward flow in charging and the downward in discharging, thermal stratification is improved because the thermocline thickness is maintained thin and the degree of stratification increases respectively.
In the charging process, in case of inlet flow rate the thermal stratification has a tendency to be improved with the lower flow rate and smaller temperature gradient.
In case of inlet temperature, the large temperature difference between inflowing water and storage water are influenced from the thermal conduction. The effect of the reference temperature difference is seen differently in comparison with the former study for chilled and hot water. In the discharging process, the thermal stratification is improved by the effect of the thermal stratification of the charging process.

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Abstract

기호설명

1. 서론

2. 실험장치

3. 빙축열 이론

4. 결과 및 고찰

5. 결론

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